Trijicon
Trijicon makes an amazing ACOG in 4x that would balance out great with the 308. You could possibly engage targets out to 700, maybe even 800 yards with that bad boy. Travis Haley at Magpul talks alot about having a sass barreled for 308 or 7.62, and how it helps pick up those 400 to 600 yard targets of opportunity. That being said, the 4x acog will give you the ability to engage from 200 all the way to 800 with the write set up.
Trijicon makes an amazing ACOG in 4x that would balance out great with the 308. You could possibly engage targets out to 700, maybe even 800 yards with that bad boy. Travis Haley at Magpul talks alot about having a sass barreled for 308 or 7.62, and how it helps pick up those 400 to 600 yard targets of opportunity. That being said, the 4x acog will give you the ability to engage from 200 all the way to 800 with the write set up.